Submission #224158

#	Time	Username	Problem	Language	Result	Execution time	Memory
224158		SomeoneUnknown	Fire (JOI20_ho_t5)	C++14	6 / 100	163 ms	7980 KiB

ho_t5

#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> ii;

ii mii(int a, int b){
    return make_pair(a,b);
}

int main(){
    int n, q;
    scanf("%d %d", &n, &q);
    bool constt = true;
    int str[n];
    for(int i = 0; i < n; i++){
        scanf("%d", &str[i]);
    }
    int ts[q];
    int ss[q];
    int es[q];
    for(int i = 0; i < q; i++){
        scanf("%d %d %d", &ts[i], &ss[i], &es[i]);
        if(i > 0 && ts[i] != ts[i-1]) constt = false;
    }
    if(constt){
        deque<ii> dq;
        long long spfs[n+1];
        spfs[0] = 0;
        for(int i = 0; i < n; i++){
            if(i > ts[0]){
                while(dq.front().second < i-ts[0]) dq.pop_front();
            }
            while(!dq.empty() && dq.back().first < str[i]){
                dq.pop_back();
            }
            dq.push_back(mii(str[i], i));
            spfs[i+1] = spfs[i] + dq.front().first;
        }
        for(int i = 0; i < q; i++){
            printf("%lld\n", spfs[es[i]]-spfs[ss[i]-1]);
        }
    }
}

Compilation message (stderr)

ho_t5.cpp: In function 'int main()':
ho_t5.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &q);
     ~~~~~^~~~~~~~~~~~~~~~~
ho_t5.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &str[i]);
         ~~~~~^~~~~~~~~~~~~~~
ho_t5.cpp:21:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d", &ts[i], &ss[i], &es[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 1
• Subtask 2: 6 / 6
• Subtask 3: 0 / 7
• Subtask 4: 0 / 6
• Subtask 5: 0 / 80